Pipe-wrench



, (No Model.)

G. M. GILLETT.

PIPE WRENCH.

No. 338,731. Patented Mar. 30, 1886.

N. PEIERS, Pnawmmwner. wnmngwn. D. C.

UNITED STATES PATENT OFFICE.

GEORGE M. GILLETT, OF LARNED, KANSAS.

PIPE-WRENCH.

SPECIFICATION forming part of Letters Patent No. 338,731, dated March30, 1886.

Serial No. 158,507. (No model.)

To all whom, it may concern:

Be it known that I. GEORGE M. GILLETT, a citizen of the United States,residing at Larned, in the county of Pawnee and State of Kansas, haveinvented certain new and useful Improvements in Pipe-Wrenches of whichthe following is a specification, reference being had therein to theaccompanying drawings.

This invention relates to improvements in pipe-wrenches, and has for itsobject to provide a wrench simple and cheap in construction which may beused for screwing and un screwing pipes and their connections. Thisobject is attained by the device illustrated in the accompanyingdrawings, forming a part of' this spccication, in which- Figure l is aside elevation with the jaws of the wrench open to receive a pipe. Fig.2 is a plan.

The letter A indicates a strong metal bar, forming the handle of thewrench, near one end of which are the studs c, projecting ontwardly ashort distance on each side, for a purpose hereinafter described. Thatpart ot' the bar A forming the handle tapers gradually and becomesenlarged into a head, A', provided with serrations a', which areintended to engage with the pipe and prevent slipping. A slottedL-shaped piece of metal, B, having serrations b, straddles the headA,and is firmly riveted thereto by the rivet C, upon which the piece Bturns freely, and thereby permits the head A and slotted piece B to beopened, so as to embrace the opposite sides of the pipe and to permitthe serrations a' and b to engage l therewith. A spring, D, madepreferably of spring-wire, and soldered or welded so as to forni asingle continuous piece of metal, is bent so as to encircle the studs aon each side of the bar A. One portion, d, of the spring D is carriedclose to the opposite sides .of the bar A, and crosses over the topthereof, thus forming a loop, which serves the purpose to maintain thespring D in its proper position. The part D forms a wider loop, d, thanthe portion d, and adapts it to extend across the top of the slottedpiece B, and thereby keep thejaws of the wrench in a closed positionwhen not in use.

It will be observed that when the head A enters the slot in the part Bthe jaws may be made to embrace a pipe of the very smallest diameter,and that this formation prevents the wrench from turning in a lateraldirection when in use.

Having described my invention, what I desire to secure by LettersPatent, and claim, 1s

In a pipe-wrench, the spring D, having loops d d', in combination withthe stud a, handle A, having head A', and slotted pivoted piece B,having serrations, as shown and described.

In testimony whereof I affix my signature in presence ot' two witnesses.

G. M. GILLETT.

lVitnesses:

H. A. BOWER, WM. SCOTT.

